 | Home > My Defender > 130 - Tow machine |
 
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| Oakseywick Member Since: 20 Dec 2014 Location: Cirencester Posts: 1000   
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This is going to be great. Sounds nice in the video
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23rd Oct 2016 8:10pm |
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| Red8eard Member Since: 21 Oct 2016 Location: UK Posts: 69 
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Cheers guys, hope i find some likeminded people on here
Yea its an air assisted clutch slave cylinder can push the pedal down with your finger even with the HD clutch alot of lorrys use them. The air suspension I made mostly out of off the shelf bits and some lasered plate. Firestone bus bags custom mounts and an airlift controller and manifold bag travels around 14" but my shocks are only 10" but i didnt want to give up the ride of the bilstiens for more travel. Few pics of them  Click image to enlarge . Click image to enlarge Click image to enlarge Click image to enlarge Click image to enlarge Click image to enlarge Mounted the tank under the seatbox too the chassis and added an airline port. Cummins had an onboard air compressor so that was taken care off, you could use and electric one though. Click image to enlarge It isnt anything anyone couldn't tackle takes a bit of time, i found a thread on Pirate which inspired me and Xeng owner did something similar also. |
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24th Oct 2016 12:05am |
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| Cupboard Member Since: 21 Mar 2014 Location: Suffolk Posts: 2971 
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Thanks
Are you just controlling the bags' pressure or do you have some height measurement too? |
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24th Oct 2016 7:18am |
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| excossack Member Since: 22 Feb 2012 Location: North West Posts: 5858 
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What stops the air bag folding on itself? 1999 Defender TD5 110
Regards John M0VAZ Econet Station 48 no clock |
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24th Oct 2016 7:44am |
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| Red8eard Member Since: 21 Oct 2016 Location: UK Posts: 69
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Just with pressures atm, Im not really worried about self leveling or anything, Not really sure how much ill play with it either tbh. But it definilty is alot nicer than putting +2 HD 90 rear springs in to support the cummins and have a harsh spring rate. The bump stops are set at a height before the minimum bag height so the axle stops before the bag folds in with its fully deflated. |
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24th Oct 2016 10:04am |
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| Cupboard Member Since: 21 Mar 2014 Location: Suffolk Posts: 2971
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The way they're made they tuck inside themselves as the air leaves them. A combination of the pressure in them and the rest of the suspension keeping the spring travel largely vertical stops them kinking. I got myself in a right muddle of confusion when trying to understand air suspension the first time because I was thinking they were like a stretchy balloon. They actually work more like a piston that you can vary the amount of air in. The pressure (in theory) has very little to do with their extended length, and actually if the air bag is shaped cleverly you can have suspension that's softer the more you extend it which is the opposite of what I'd thought. In the real world it seems that it's actually slightly harder when taller (according to manufacturer specs) but there's not a lot in it. That does need height sensors though. Basic air suspension controllers just adjust the pressure which is OK for a low performance street vehicle but not that great for high performance or off road vehicles. If you keep the pressure equal in all four corners, as you corner it will tend to let the air out of the side on the outside of the bend, which is the exact opposite of what you want. In the same way if you have the same pressure front/back but more weight on the back then it will sit down. For that, you need pressure and height sensors on each corner and a controller that says "this corner is at high pressure and well compressed so it needs more air". For off road use say on a side slope, the controller needs to say "the left has more pressure and is compressed and we're leaning that way, so add more air to the left", or if you've got diagonally opposite wheels in the air then the controller needs to take air out of the compressed corners (so retracting them) and extend the floating corners to try and get them in touch with the floor. You can't just do it with pressure and you can't just do it with height - or at least you can't if you want the best out of the system. What you can do is cross link them so front left with back right, and front right with back left and then programme some sort of front/rear pressure difference and that will get you almost where you need to be just on pressure. That does still leave you with the potential for them to all be operating at one or other end of their travel but at least they're even and not leaning you the wrong way in corners. Edit: Red8eard thanks.
I've been toying with the idea of making something myself but just keep coming back to thinking it's probably more hassle than it's worth. |
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24th Oct 2016 10:27am |
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| shaggydog Member Since: 12 Aug 2012 Location: Kent Posts: 3347 
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Very Cool
Watching this thread with great interest Running Restoration Thread http://www.defender2.net/forum/post323197.html#323197
Self confessed mileage hunter  |
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24th Oct 2016 11:56am |
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| Red8eard Member Since: 21 Oct 2016 Location: UK Posts: 69
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got stuck into the engine fine tuning tonight, set the timing tappets and lash. also found the source of my rough idle problem a sticking stop solinoid, i had a spare from my old disco 300tdi. So i fitted that and you could almost put a coin on her now.
Quick video of it running, Ill have to make the intake and silencer for the compressor soon its huffing and clicking is rather annoying lol https://www.youtube.com/watch?v=Sg-j8_TcMtE Also got an earth battery isolator installed but not wired yet. Click image to enlarge -Ged Last edited by Red8eard on 25th Oct 2016 7:44am. Edited 1 time in total |
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24th Oct 2016 10:45pm |
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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
sounds good interesting to note parts work from 300tdi to Cummins
have worked with Cummins 3512, 3516, KTA and QSK engine |
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25th Oct 2016 7:14am |
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| Red8eard Member Since: 21 Oct 2016 Location: UK Posts: 69
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The VE injection pump body is common too both only reason they swap. I dont think there would be much else the boost pin is swappable also.
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25th Oct 2016 7:50am |
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| dorsetsmith Member Since: 30 Oct 2011 Location: South West Posts: 4554 |
bigger lumps used PT injection pump body
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25th Oct 2016 8:10am |
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| Red8eard Member Since: 21 Oct 2016 Location: UK Posts: 69
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Yea the P7100 is a good pump but not as refined as the rotary. Defiantly fit for more power, Ive seen people take the humble ve out to 400hp with some internal mods. Im thinking of spacing the dynamic timing plate and AFC spring for a bit more advance at the top end while keeping the stock static timing at the bottom for nice grunt. Im pleasantly surprised so far with the rotary.
She will supply more than enough for the landy axles at any rate.  |
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25th Oct 2016 1:52pm |
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| Red8eard Member Since: 21 Oct 2016 Location: UK Posts: 69
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So ive been working away on the wiring this week, Mainly focused on the cubby box
Loom under the box Click image to enlarge Connectors for the box in the trap door to get too the tbox these also pull through to get the lid out easily. Click image to enlarge I added a usb charging port and a extra 12v socket too the front of the box for charging phones etc. Click image to enlarge How it all connects up i left enough slack to tip the box on its back and then unplug the cables. Click image to enlarge lit up like Christmas still the winch controls and interior lights to get a loom made up for Click image to enlarge The priority's, tested the drivers one out, could be nice for a nap in the shed. Click image to enlarge Hoping to make the loom for the winch tomorrow finish off around the dash and get into replacing the tappet gasket which is a decent size job on the cummins. -Ged |
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28th Oct 2016 10:40pm |
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| AndrewS Member Since: 10 Apr 2007 Location: Hereford Posts: 3708 
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Fair Play
130's have feeling's as well you know |
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29th Oct 2016 7:50pm |
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